Question 1208162
<pre>

{{{1}}}{{{""-""}}}{{{7/8}}}

Write {{{1}}} as {{{8/8}}}

{{{8/8}}}{{{""-""}}}{{{7/8}}}

Subtract the numerators, 8-7=1, and keep the same denominator, 8:

{{{1/8}}}

Edwin</pre>